Apparatus for making shoe soles



May 19, 1936. W. J. DE WlTT ET AL APPARATUS FOR MAKING SHOE SOLESOriginal Filed April 10,

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Patented May 19, 1936 UNITED STATES PATENT OFFICE APPARATUS FOR MAKINGSHOE SOLES Original application April 10, 1933, Serial No.

665,296. Divided and 1935, Serial No. 23,393

3 Claims.

This invention relates to an improvement in apparatus for making shoesoles being a further development of the invention disclosed in PatentNo. 1,843,753, dated February 2, 1932 and has for its primary object toprovide a machine for upturning one lip of the split edge of a shoesole, one of the steps in the preparation of such soles for the assemblyof shoe uppers therewith. The present application is a division of ourcopending application Serial No. 665,296, filed April 10, 1933.

In the drawing Fig. 1 is a front elevation of one form of machineembodying this invention;

Fig. 2 is a plan View thereof; and

Fig. 3 is an enlarged sectional view illustrating the lip turning toolin operation.

The shoe sole I05 having been blanked and the edge having beenthereafter split in any well known manner, as for example in accordancewith the disclosure in the above mentioned patent or application isthereby provided with lower and upper lips I06 and I0! respectively. Inaddition the lower lip I06 may be trimmed so that it is shorter than theupper lip I01 (see Fig. 3). This further treatment is not howeveressential and may be omitted. The present invention relates to theupturning of the upper lip I01 by means for example of the machine I40.

The machine I40 comprises a bed plate I4I supported upon suitable legsI42 and having an opening I 43 therein through which passes a shaft I44.The shaft I44, which passes through a bushed sleeve I45 suitably securedto the underside of the bed plate I4I, carries at its upper end asubstantially rectangular block I46 and at its lower end a pulley I41 towhich power may be applied in any desired manner. A hammer I48 restingupon a plate I49 and enclosed by a U- shaped cage I50 is so located onthe bed plate that its inner end may be engaged by the block I46. Thehammer I48 is (see Fig. 2) offset with respect to the shaft and is freeto reciprocate in the cage and its outer end is preferably forwardly andupwardly inclined (see Fig. 3).

The sole I05, placed by the operator with the lower lip I06 against theedge of the plate I49, is turned slowly until the entire split portionof the sole has passed the hammer. Each corner of the rotating block I46forces the hammer I43 to advance and bend the lip I01 upwardly while thepressure of the sole as it is held against the plate forces the hammerto remain in contact with the block. The hammer I48 overhangs the plateI49 at all times and when the sole is positioned with one side of theblock against the hammer the lip this application May 25,

I0! is initially bent upwardly. The advance of the hammer by the cornersof the block forces the lip back sharply, and permanently bends it alonga line determined by the contact of the lower lip I 56 with the plateI49 as shown in Fig. 3.

While one embodiment of this invention has been shown and described itwill be understood that we are not limited thereto and that otherembodiments may be made without departing from the spirit and scope ofthe invention as set forth in the following claims.

We claim:

1. A machine for upturning one lip of a shoe sole the edge of which hasbeen split to provide upper and lower lips, comprising a bed plate, aplate mounted thereon, a hammer reciprocable over said plate, a cagefixed to said bed plate to control the direction of reciprocation of thehammer, a rotatable block against which the hammer is held by the solebeing treated, the block being provided with corners and means forrotating the block to advance the hammer, intermittently by the cornersof the block, against a partially upturned lip of the sole to bend thesame, the other lip resting against the plate mounted on the bed plateto determine the location of the line along which the first mentionedlip is bent.

2. A machine for upturning one lip of a shoe sole the edge of which hasbeen split to provide upper and lower lips, comprising a bed plate, aplate mounted thereon, a hammer reciprocable over said plate, the nosethereof projecting beyond the edge of the plate, and a rotatable blockfor intermittently advancing the hammer, the sole to be treated actingto hold the hammer against the block and being positioned with the lowerlip below the nose of the hammer and in contact with the edge of theplate mounted on the bed plate and the upper lip resting against andpartially upturned by the nose of the hammer whereby the reciprocationof the hammer bends the upper lip upwardly along a line determined bythe location of the lower lip.

3. A machine for upturning one lip of a shoe sole, the edge of which hasbeen split to provide upper and lower lips, comprising a bed plate, aplate mounted thereon, one lip of said sole resting against the edge ofthe last-named plate, a hammer resting upon and reciprocable over saidplate into contact with and away from the other lip of said sole, whichhas been partially upturned, to bend such lip away from the other lip ofthe sole, and means for actuating said hammer.

WILLIAM J. DE WITT. ERLE FLOYD BEERS.

